Lighted Jeweler's Eye Loupe 10X Lens - Super Bright White LED Professional quality jeweler's tool - improved with LED lighting 21mm glass lens provides distortion-free viewing 10X magnification enlarges objects to 2000%, swivel aluminum cover doubles as handle Two super-bright 15,000mcd white LED Padded storage case; lights for 40+ hours on 3 LR927 button-cell; batteries included with key